Sterilizing device



Aug. 11, 1925.

1,548,899 S. OYAMA STERILIZING DEVICE Fled'Sept. 4. 1923 2 Shasta-Sheet 1 WITNESSES J/a @WCW A TTOR NE YS Aug. 11, 1925. 1,548,899

s. OYAMA y STERILIZING *DEVICE Filed sept. 4, 192s z-shntn-sheet 2 WITNESSES 1N VENTOR f//HOM/{M/ v en Z0 O'ya/mw A ATTORNEYS @www Patented Aug. 1l, 1925.

STATES TENT OFFICE.

sTEaILIzmG DEVICE.

application mea september e, 192s. serial no. 660,793.

To aZZ whom t may concern.'

Be it known that I, SENzo OYAMA, a subject'of the Emperor of Japan, and a resident of Hilo, in the county of Hawaii and Territory of Hawaii, have invented certain new and useful Improvements in Sterilizing Devices, of which the following is a specification. v

This invention relates to liquid containingA bottles and a sterilizer therefor.

An important object of the invention is to provide a vliquid containing bottle having novel means whereby gases formed as the resultof heating the liquid may conveniently escape. c

A further object is to provide a novel form of bottle. and cap provided with simple means whereby the admission of air or. water exteriorly of the bottle lis prevented from entering the vbottle and possibly contaminating the contents of the same.

Further,the invention forming the sub ject matter of this application aims to provide a 'sterilizer capable of use when sterilizing bottles and the contents of the same, and which is provided with simple means to indicate the` temperature within the sterilizer so that an accurate 'check on the sterilization .process may bel maintained.

Other objects and advantages will be apparent during-the course of the following description.

- a bottle adapted for the reception of milk or In the accompanying drawings forming a part of this application and in which like numerals are employed to designate like parts throughout the same- Figure l is a side elevation of a bottle and cap therefor constructed in accordance with this invention;

Figure 2 is a vertical sectional View through the cap and bottle;

Figure 3 is a horizontal sectional view through .the cap;

Figure 4 is a fragmentary side elevation of the bottle equipped with a nipple;

Figure 5 is a perspective view of the improved sterilizer;

Figure 6 is a central vertical sectional view through thesame;

Figure 7. is a horizontal sectional view through the sterilizer;

Figure 8 is a horizontal sectional view illustrating a-rack embodied in the invention.

ln the drawings the numeral 5 designates thus the necessity for other liquid, and, a's shown in the drawing, the upper 'ortlon of the bottle is provided 6 formed with external threads 7 for threaded engagement with the tubular attaching portion 8 of a cap 10. The cap 10 1s provided with an inwardly pro- Jecting annular flange 14 taining n means for a cork 16, the characteristics of which will be pointed out.

Previous to using the cork the same is` softened by a machine press or otherwise, and when .the contents of the bottle is heated to approximately 180 degrees the cork will be softened so that any gas formed may es-I cape between the cork and the top 20 of the bottle. It will be seen that the cap is provided with a series of longitudinal, outwardly proJecting ribs 22 which form internal channels or vents by means of which the gas may escape, and also these vents allow for expansion of the liquid when heated. That is to say, the liquid extends only up as far as the line 30 in the bottle and the air above the l1ne 30 may escape so far as is necessary by way of the vents within the ribs 22.

Itfwill be seen that the upper end 20 has its outer edge substantially in gas tight contact with the inner wall of the cap l0 and the internal vent defined by the longitudinally extending ribs 22.

which acts as a re- It is important to note, however, that this l en and reinforce the cap sothat thesame is not easily mutilated. In other words when the pressure of the gas within the bottle exceeds a predetermined point it will exert a pressure on the compressible element 16 so that' this compressible element moves out of gas-tight contact with the neck of the bottle and thereby permits the gas to escape to the atmoshere by way of the internal passages formed by the ribs 22.

The sterilizer is designated by the numel-al: 50 and is formed of aluminum or other 'suitable material and is provided with a thermometer 52 visible from the exterior of the receptacle so that the temperature of the contents of the receptacle may be readily ascertained. The receptacle may' be provided With a cover 56 having a handle 58 by means of which the cover may be detached.

In carrying out the invention a rack 60 is located within the receptacle and is arranged in spaced relation to the bottom of' the receptacle by means of lugs or spacing devices G2. The rack is provided with stems 64"to which a bottle retaining frame 66 is connected, and of course the frame 66 may be provided with a series of openings rack are introduced into the receptacle and water is supplied until the water level reaches the dotted line 93. Heat is now applied so that the contents of the receptacle will reach 180 degrees by the thermometer. This temperature is maintained for about thirty minutes and then cool water is introduced into thereceptacle so as to gradually cool the contents of the same to 100 degrees within fifteen minutes. After the contents of the receptacle is cool the bottles are removed and the caps are allowed to remain in place so as to exclude dust-laden air With reference to the foregoing description taken in connection with. the accompanying drawing, it will be observed that the invention forming the subject matter of this application is possessed of a number of sanitary features, all of which meet a definite need in the art.

Having thus described my invention, what is claimed is:

1. The combination of a bottle adapted for the reception of a liquid and having a neck exteriorly .screw threaded, a cap threaded on said neck and having substantially air-tight contact with the upper portion of the same, and a cork mounted on the top of the bottle and coniined within said cap, said cap being provided with a series of outwardly projecting ribs defining internal passages for the escape of gas and constituting gripping devices by means of which the cap may be turned, said ribs also acting as strengthening and reinforcing means Jfor the cap.

2. The combination of a bottle adapted for the reception of a liquid and having a neck exteriorly screw threaded, a ca having substantially gas tight contact with the upper portion of said neck and a threaded attaching portion adapted to engage the threads on said neck, and a cork mounted on the top of the bottle and confined Within said cap, said cap being provided with a series of outwardly projecting ribs delining internal vents or passages and constituting gripping devices by means of which the cap may be turned, sald ribs also acting as strengthenii'ig and reinforcing means for the cap, said cork' being compressible under the influence of the gas inl said bottle whereby the cork may move out of gas-tight engagement with the neck.

SENZO OYAMA. 

